Patents by Inventor Li Fu Chen

Li Fu Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10690333
    Abstract: Disclosed are a heat dissipating frame structure having higher heat dissipation efficiency than the prior arts and a fabricating method thereof. Namely, the heat dissipating frame structure comprises a metal plate assembly, a part of which contacting with a heating element, and a plastic composition combined with the metal plate assembly to through the metal plate assembly receive the heat generated from the heating element.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: June 23, 2020
    Assignee: MENTOR TECHNOLOGIES CO., LTD.
    Inventor: Li Fu Chen
  • Publication number: 20170059146
    Abstract: Disclosed are a heat dissipating frame structure having higher heat dissipation efficiency than the prior arts and a fabricating method thereof. Namely, the heat dissipating frame structure comprises a metal plate assembly, a part of which contacting with a heating element, and a plastic composition combined with the metal plate assembly to through the metal plate assembly receive the heat generated from the heating element.
    Type: Application
    Filed: July 13, 2016
    Publication date: March 2, 2017
    Inventor: Li Fu CHEN
  • Patent number: 7166542
    Abstract: A method of fabricating a passivation layer is provided. A substrate with a plurality of device structures and at least an interconnect thereon is provided. A patterned metallic layer is formed over the interconnection layer. A plasma-enhanced chemical vapor deposition process is performed to form a first passivation over the metallic layer such that the processing pressure is higher (and/or the processing power is lower) than the pressure (the power) used in prior art. A moisture impermeable second passivation is formed over the first passivation layer. With the first passivation formed in a higher processing pressure (and/or lower processing power), damages to metallic layers or devices due to plasma bombardment is minimized.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: January 23, 2007
    Assignee: Nanya Technology Corporation
    Inventors: Ming-Hung Lo, Liang-Pin Chou, Chun-Ming Wang, Li-Fu Chen
  • Publication number: 20070014905
    Abstract: The invention provides a method and system of processing a starchy material that can advantageously produce ethanol, sugar syrup, or starch as the chief products along with food-grade co-products such as, but not limited to oil, protein, fiber, and gluten meal. The invention can apply such a force to a starchy material that is at a superambient temperature with a high shear processor to mill, mix, and gelatinize some of the starch. A liquefaction enzyme can be introduced into the high shear processor to liquefy the processed product. The moisture content of the processed starchy material can be reduced, which preferably occurs in the high shear processor. Some of the co-products such as the oil, protein, fiber and gluten meal can be separated prior to the sugar syrup purification or ethanol fermentation steps.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 18, 2007
    Inventors: Li-Fu Chen, Qin Xu
  • Publication number: 20050106300
    Abstract: A method of processing a starchy plant material to produce a processed material having an increased solubility in alcohol comprising mixing the starchy plant material and a liquid at an elevated temperature to form a mixture and applying shear force to the mixture to produce the processed material. The processed material is one or more or a combination or complex of protein, zein, and oil.
    Type: Application
    Filed: June 30, 2004
    Publication date: May 19, 2005
    Inventors: Li-Fu Chen, Qin Xu, Bruce Hamaker
  • Publication number: 20050074964
    Abstract: A method of fabricating a passivation layer is provided. A substrate with a plurality of device structures and at least an interconnect thereon is provided. A patterned metallic layer is formed over the interconnection layer. A plasma-enhanced chemical vapor deposition process is performed to form a first passivation over the metallic layer such that the processing pressure is higher (and/or the processing power is lower) than the pressure (the power) used in prior art. A moisture impermeable second passivation is formed over the first passivation layer. With the first passivation formed in a higher processing pressure (and/or lower processing power), damages to metallic layers or devices due to plasma bombardment is minimized.
    Type: Application
    Filed: November 21, 2003
    Publication date: April 7, 2005
    Inventors: Ming-Hung Lo, Liang-Pin Chou, Chun-Ming Wang, Li-Fu Chen
  • Publication number: 20030155679
    Abstract: The present invention provides a method of making a carbohydrate foam composition. The method produces a foam composition is highly wettable, resilient and has a uniform pore structure suitable for use in products such as absorbent personal products, health care products, and products suitable for fluid distribution and transfer. The foam of the present invention may also be made into sheets suitable for products such as tissue and paper towels. In one embodiment the foam is made from a carbohydrate and zinc chloride. In a further embodiment the carbohydrate is cellulose, and in a further embodiment the carbohydrate is chitin. The method of the present invention allows control over various properties of the foam carbohydrate composition.
    Type: Application
    Filed: December 31, 2001
    Publication date: August 21, 2003
    Inventors: William G. Reeves, Li-fu Chen
  • Publication number: 20030143388
    Abstract: The present invention provides a carbohydrate foam composition. The foam composition is highly wettable, resilient and has a uniform pore structure suitable for use in products such as absorbent personal products, health care products, and products suitable for fluid distribution and transfer. The foam of the present invention may also be made into sheets suitable for products such as tissue and paper towels. In one embodiment the foam is made from a carbohydrate and zinc chloride. In a further embodiment the carbohydrate is cellulose, and in a further embodiment the carbohydrate is chitin.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 31, 2003
    Inventors: William G. Reeves, Li-fu Chen
  • Patent number: 6599575
    Abstract: The present invention is directed to a method for the production of a durably hydrophilic, non-leaching coating. A carbohydrate-salt mixture is formed by at least partially dissolving a water insoluble carbohydrate in an aqueous salt solution to form a carbohydrate-salt complex. The carbohydrate-salt mixture is applied to a substrate, and the substrate is rinsed with a solvent to form a coating.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: July 29, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: William G. Reeves, Li-fu Chen
  • Publication number: 20030124257
    Abstract: The present invention is directed to a method for the production of a durably hydrophilic, non-leaching coating. A carbohydrate-salt mixture is formed by at least partially dissolving a water insoluble carbohydrate in an aqueous salt solution to form a carbohydrate-salt complex. The carbohydrate-salt mixture is applied to a substrate, and the substrate is rinsed with a solvent to form a coating.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: William G. Reeves, Li-fu Chen
  • Publication number: 20030125683
    Abstract: The present invention is directed to a durably hydrophilic, non-leaching coating. A carbohydrate-salt mixture is formed by at least partially dissolving a water insoluble carbohydrate in an aqueous salt solution to form a carbohydrate-salt complex. The carbohydrate-salt mixture is applied to a substrate, and the substrate is rinsed with a solvent to form a coating. The present invention is further directed to a substrate coated with the coating of the present invention and absorbent structures comprising the coated substrate.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: William G. Reeves, Li-fu Chen
  • Patent number: 5382294
    Abstract: The object of the present invention is to chromatographically separate the higher and lower molecular weight components of juices, liquors, syrups and/or molasses (e.g., inorganic-organic complexes and organic non-sugars), thereby permitting the lower molecular weight sugar and soluble salt-containing fraction(s) to be further processed into natural sweetener products.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: January 17, 1995
    Inventors: Nicholas T. Rimedio, Li Fu Chen
  • Patent number: 5306637
    Abstract: This invention is a method to rupture microbial cells in order to recover intracellular material in the cells comprising:a) treating the cells with carbon dioxide under pressure sufficient to enter the cells for time sufficient to allow enough carbon dioxide into the cells to effect later rupture, thenb) suddenly releasing the applied fluid pressure on the cells so that the outer wall or membrane of the cells is ruptured by the expansion of carbon dioxide within the cell. Preferably the remaining intracellular material of the cells is separated and recovered. Also the treatment can be in conjunction with lytic enzyme to increase rupture rates. Preferably the enzyme remains active and protein in the cells retains its native state in the ruptured cell suspension. The preferred time for treating is from between about one hour and about fifteen hours. It is also preferred to treat initially at a pressure of from above about 500 psi gage to about 5000 psi and a temperature of about 10.degree. to about 85.degree.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: April 26, 1994
    Inventors: Ho-Mu Lin, Li-Fu Chen
  • Patent number: 5290349
    Abstract: The present invention relates to the production of high tensile strength, solvent-spun cellulose fiber which is stable in alkaline solutions. More particularly, the invention relates to a process in which cellulose is solubilized in a zinc chloride solution then extruded into a coagulation medium in which the cellulose fibers form. The fibers are removed from the coagulation medium, treated to remove the coagulation medium, stretched and recrystallized in water, thus forming the high tensile strength, solvent-spun cellulose fibers.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: March 1, 1994
    Assignee: Purdue Research Foundation, Division of Sponsored Programs
    Inventor: Li Fu Chen
  • Patent number: 4999149
    Abstract: The present invention relates to the production of high tensile strength, solvent-spun cellulose fiber which is stable in alkaline solutions. More particularly, the invention relates to a process in which cellulose is solubilized in a zinc chloride solution then extruded into a coagulation medium in which the cellulose fibers form. The fibers are removed from the coagulation medium, treated to remove the coagulation medium, stretched and recrystallized in water, thus forming the high tensile strength, solvent-spun cellulose fibers.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: March 12, 1991
    Assignee: Purdue Research Foundation, Division of Sponsored Programs
    Inventor: Li Fu Chen
  • Patent number: 4716218
    Abstract: A process for the production of grain oil, dehydrated alcohol, grain protein and starch, is disclosed. The invention comprises the steps of (a) drying cracked grain, (b) leaching the dried grain with an ethanol solution of 90 to 100% w/v ethanol and recovering dehydrated alcohol and grain oil, (c) extracting the residue of step (b) with a second ethanol solution containing NaOH and recovering food grade protein, and (d) separating starch and fiber from the residue of step (c) by starch hydrolysis or by grinding the residue and separating the starch and fiber by a screen and/or centrifuge.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: December 29, 1987
    Assignee: Purdue Research Foundation
    Inventors: Li-Fu Chen, Johan E. Hoff
  • Patent number: 4518052
    Abstract: This invention relates to a body height and weight measuring machine, which operates by means of a winding transmission cord means to drive a sliding plate having sensing, measuring, and digital display functions. When the sliding plate moving upwards, the sensing means will receive the refracted infrared rays as a result of a person's height to cause said winding transmission cord means to stop moving; then, a correct height and weight will be displayed thru digital display means. The aforesaid height measurement and its digital display are done by means of a photocell sensing means being coupled to a scale plate that includes a black and transparent strip in alternate arrangement and equal width so as to have said photocell sensing means generating a forward or reverse sequence sensing signal during the sliding plate moving; then, said signals will be shown on a display means driven with driving circuit.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: May 21, 1985
    Inventor: Li-Fu Chen
  • Patent number: 4490468
    Abstract: Ethanol is produced by the fermentation of xylulose using yeast under fermentative conditions.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: December 25, 1984
    Assignee: Purdue Research Foundation
    Inventors: Cheng Shung Gong, Li Fu Chen, Michael C. Flickinger, George T. Tsao
  • Patent number: 4452640
    Abstract: Cellulose may be quantitatively hydrolyzed to glucose without formation of degradation products by pretreatment of cellulose with zinc chloride to liquify the cellulose and thereafter hydrolyzing the cellulose with acid.
    Type: Grant
    Filed: May 11, 1982
    Date of Patent: June 5, 1984
    Assignee: Purdue Research Foundation
    Inventors: Li Fu Chen, Che-Ming Yang
  • Patent number: 4336855
    Abstract: The present invention offers an "automatic digit display machine for measuring height and weight" which can measure the height and weight of human body at the same time by virtue of an illuminant (LED or bulb) on the top of the machine to slopewise emit a ray downward illuminating the human head. The ray reflects to a plane mirror which, in turn, further reflects it to a sensor (CDS or photo-electric crystal) so as to stop the impetus of flexible transmission. Meantime, the metal contact sliding upward stops at the certain position of circuit board, and thru the special circuit design of the circuit board, the digit of height of human body is displayed by the drive circuit display device.The weight of human body is displayed with digit by the said display device thru the said drive circuit in line with the micromotion generated by the weight-measuring result from the high-class scale body in general.
    Type: Grant
    Filed: May 28, 1980
    Date of Patent: June 29, 1982
    Inventor: Li-Fu Chen